Home / 1,284,981.55-1,927,097.49-431,956.78

Finding the Fourth Proportional to 1,284,981.55, 1,927,097.49 and 431,956.78

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Solution

The fourth proportional to 1,284,981.55, 1,927,097.49 and 431,956.78 is: 647,809.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,981.55 : 1,927,097.49 = 431,956.78 : x
  2. Step 2: Convert to fraction form
    1,284,981.55/1,927,097.49 = 431,956.78/x
  3. Step 3: Cross multiply
    1,284,981.55x = 1,927,097.49 × 431,956.78
  4. Step 4: Simplify right side
    1,284,981.55x = 832,422,826,526.48
  5. Step 5: Solve for x
    x = 832,422,826,526.48/1,284,981.55
  6. Step 6: Final answer
    x = 647,809.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.